#include <stdio.h>
#define SIZE 10

int sum(int arr[], int n);

int main(void) {
    int marbles[SIZE] = {20, 10, 5, 39, 4, 16, 19, 26, 31, 20};
    long answer = sum(marbles, SIZE);
    printf("The total number of marbles is %ld.\n", answer);
    printf("The size of marbles is %zd bytes.\n", sizeof marbles);

    return 0;
}

int sum(int arr[], int n) {
    int i;
    int total = 0;
    for (i = 0; i < n; i++)
        total += arr[i];
    printf("The size of arr is %zd bytes.\n", sizeof arr);
    
    return total;
}
